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5 votes
2 answers
451 views

Subobjects as an object in a topos

Forgive me if this question turns out to be too elementary-then feel free to move it to stack exchange. I believe that this should be very basic fact from topos theory nevertheless being not familiar …
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5 votes
1 answer
269 views

Equivalence of two pictures of odd $K$-theory

One can show that two functors $K^0$ and $K_0(C(-))$ from the category of compact topological spaces to the category of abelian groups are naturally equivalent. The first one is topological $K$-theory …
truebaran's user avatar
  • 9,330